Hello dear,
First of all, the dosage formulation of the syrup is meant for pediatric use. It will not be helpful in treating an adult weighing 70 kg.
The symptoms as mentioned in your post suggests that your husband might be having upper
respiratory tract infection(most probably viral infection)
Nurofen or
paracetamol will only provide symptomatic relief from
fever.
The throat pain and associated symptoms also needs to be taken care of.
The management consists of:
1. Drinking of warm fluids to reduce throat pain
2. Antihistamines to provide symptomatic relief from cold & cough
3. A course of antibiotic to prevent secondary bacterial infection
If symptoms still persist...it will be better to consult an
ENT specialist.
Meanwhile...he should avoid cold food & drinks, maintain adequate hydration & take soft, non-spicy foods.
Wishing him good health & a speedy recovery.
Take care.